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प्रश्न
2500 cm3 of hydrogen is taken at STP. The pressure of this gas is further increased by two and a half times (temperature remaining constant). What volume will hydrogen occupy now?
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उत्तर
V1 = 2500 cm3
P1 = 1 atm = 760 mm
T1 = 273 K
V2= ?
T2 = 273 K
`"P"_2 = 760 xx 5/2 + 760 = 1900 + 760 = 2660 "mm"`
`("P"_1 "V"_1)/"T"_1 = ("P"_2 "V"_2)/"T"_2`
`(760xx2500)/273 = (2660xx"V"_2)/273`
`"V"_2 = 5000/7 = 714.29 "cm"^3`
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